Six.
-65
The factors of 65 are 1, 5, 13, 65.
65 and 77
65 has 13 as a factor because 13 divides into 65 evenly with no remainder. The sum of the digits of 65 is 11 because 6 + 5 = 11
The sum of all the positive factors of 12 is 28.
65 and 77
1, 5, 13, 65
1, 5, 13, 65.
The sum of the positive whole-number factors of 30 is 72.
The sum of 65 and 204 is 269.
65.